# Elasticsearch Memory Utilization **URL:** \ **Category:** Elasticsearch\ **Created:** [July 21, 2023, 7:24am UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928 "2023-07-21T07:24:30Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Debasis\_Mallick](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/debasis_mallick/32/123723_2.png) [@Debasis\_Mallick](https://discuss.elastic.co/u/Debasis_Mallick)\ **Post date:** [July 21, 2023, 7:24am UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928/1 "2023-07-21T07:24:30Z")
Hi Team, I am new to the Elasticsearch world. I had installed the Elasticsearch in one of my lab VM, where it is showing memory utilization is 8.3 GB when I check "systemctl status elasticsearch" and VM gets hang. Is there anyway we can reduce the memory utilization of elasticseach. Please advise. Thanks, Debasis ---
**Author:** ![PodarcisMuralis](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/podarcismuralis/32/122606_2.png) [@PodarcisMuralis](https://discuss.elastic.co/u/PodarcisMuralis)\ **Post date:** [July 21, 2023, 8:40am UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928/2 "2023-07-21T08:40:10Z")
Hi, As far as I know elasticsearch uses Java and the memory is controlled by Java heap size. You can navigate to elasticsearch -\> config -\> vm.options and change your heap size. For example: (you can set your own value) -Xms1g -Xmx1g or -Xms512m -Xmx512m And if you have too many shards (primary or replicas), it will impact your memory usage. You can disable unnecessary plugins. They also consume memory. ---
**Author:** ![Debasis\_Mallick](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/debasis_mallick/32/123723_2.png) [@Debasis\_Mallick](https://discuss.elastic.co/u/Debasis_Mallick)\ **Post date:** [July 21, 2023, 11:03am UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928/3 "2023-07-21T11:03:25Z")
Thanks @PodarcisMuralis . Now I can see the memory usage reduces according to the settings in jvm.options file. I tried to curl the IP of my host over 9200 (port is opened and used by elasticsearch process) but giving error as below. Could you please advise [root@prestovm1 elasticsearch]# curl -X GET "xx.xx.xx.xx:9200" curl: (52) Empty reply from server Thanks, Debasis ---
**Author:** ![PodarcisMuralis](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/podarcismuralis/32/122606_2.png) [@PodarcisMuralis](https://discuss.elastic.co/u/PodarcisMuralis)\ **Post date:** [July 21, 2023, 11:35am UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928/4 "2023-07-21T11:35:39Z")
It seems that elasticsearch is not responding. I assume you installed curl command and it is working correctly. Did you restart elasticsearch? ```auto systemctl restart elasticsearch ``` ---
**Author:** ![Rios](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rios/32/95745_2.png) [@Rios](https://discuss.elastic.co/u/Rios)\ **Post date:** [July 22, 2023, 11:24am UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928/5 "2023-07-22T11:24:31Z")
By default, ES use 50% memory. As Podarcis said, set ```auto -Xms2g -Xmx2g ``` (without spaces at the begging of line) in `/etc/elasticsearch/jvm.options.d/jvm.options` which template you have in /etc/elasticsearch/jvm.options, but do not add to root. 1-2 GB should be fine for learning purpose and not larger indices - few GB. For more info, read [the blog](https://www.elastic.co/blog/managing-and-troubleshooting-elasticsearch-memory) . ---
**Author:** ![Debasis\_Mallick](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/debasis_mallick/32/123723_2.png) [@Debasis\_Mallick](https://discuss.elastic.co/u/Debasis_Mallick)\ **Post date:** [July 24, 2023, 5:59am UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928/6 "2023-07-24T05:59:46Z")
@PodarcisMuralis Yes, curl command working properly and tested also but still the systemctl restart elasticsearch.service does not help me . I am getting same error while doing curl over port "9200". Thanks, Debasis ---
**Author:** ![Debasis\_Mallick](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/debasis_mallick/32/123723_2.png) [@Debasis\_Mallick](https://discuss.elastic.co/u/Debasis_Mallick)\ **Post date:** [July 28, 2023, 10:00am UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928/7 "2023-07-28T10:00:30Z")
@PodarcisMuralis Can you please help me on this. Thanks, Debasis ---
**Author:** ![PodarcisMuralis](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/podarcismuralis/32/122606_2.png) [@PodarcisMuralis](https://discuss.elastic.co/u/PodarcisMuralis)\ **Post date:** [July 28, 2023, 2:47pm UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928/8 "2023-07-28T14:47:06Z")
I am also out of options here. If you use many nodes, please check if there is any firewall. Please check if port 9200 works. ```auto netstat -tulnp | grep 9200 ``` Please check also elasticsearch logs. var/log/elasticsearch As a last option, reinstall elasticsearch. ---
**Author:** ![Debasis\_Mallick](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/debasis_mallick/32/123723_2.png) [@Debasis\_Mallick](https://discuss.elastic.co/u/Debasis_Mallick)\ **Post date:** [July 31, 2023, 6:31am UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928/9 "2023-07-31T06:31:44Z")
Thanks @PodarcisMuralis it works now. Actually I am starting elastic stack due to my interest not sure where to start. Could you please help me. Thanks, Debasis ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [August 28, 2023, 6:32am UTC](https://discuss.elastic.co/t/elasticsearch-memory-utilization/338928/10 "2023-08-28T06:32:35Z")
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